Emulsifiable product and emulsion obtained therefrom



, Patented June 13, 1933 .um'rao [STATE-SA Bantam-1n. or naoonnr, you

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emulsifying, namely does not require any emulsifying agent to efl'ect its dispersion in water and other solvents. Y

The invention has for a still further object a product havin superior solubility, being capable of disso ving in turpentine. to the extent of 15% and in alcohol to the extent of 5%. Y The product utilized in preparing an as glycol (ethylene glycol) or compounds thereof such as diethylene or triethylene glycol or ethers of the same, with an acid of the higher members of the fatty acid series containing more than five carbon atoms to the molecule, such as stearic acid, myristic', lauric, linoleic acids, etc.

As a typical example, 102 parts by weight of triethylene glycol, 284 parts of stearic acidand 4 parts of sodium glycerophosphate, as a catalyst, are" heated together at 200 C. in an autoclave for some two hours with vigorous agitation and under a pres- 85 sure of 50 lbs. per srpllare inch. In place of the glycerophosp ate catalyst, other catalysts may be used such as sodium sulphite, bisul hite and tetraborate, or calcium chlori e, anhydrous boric acid, etc. The charge, which has thereby been incompletely reacted and retains an appreciable amount of unreacted stearic acid, is'then al-. lowed to cool to 100 C. and the water distilled over in vacuo, whereupon the temperature is graduall 'raised to distill ofi the excess glycol un er reduced pressure. The reaction mass is then dissolved in benzol or na htha and filtered, the solvent beingther'eater distilled from the filtrate so and the latter run onto chilled rolls from which the glycol stearate thus obtained is.

emulsion. is derived from dihydric alcohols slfyi'ng, no alkali, sulphonated compound, soap, gum or amine bein necessary to effect 'zol, turpentine, etc., and emulsified, and

Application and li s, 1931. serum 30. 586,089.

scraped of! in waxy flakes orchips. This compound or product is odorless, colorless and tasteless, and non-corrosive,non-toxic and edible. It is, furthermore, soluble in alcohol, benzol, turpentine, etc., and afiords with water or diluted alcohol a voluminous, gelatinous precipitate or. dispersion.

With the aforesaid product, a very stable emulsion of a mineral oil is effected, for 1 example by melting 1 part of this synthetic wax with 5 parts 0 the mineral oil and vigorously stirring in 10 to .20 parts of water. A rich, creamy emulsion of great stability results from this procedure. By varying the amount of oil or-wateridiiferent consistencies are obtained.

Furthermore, if 1 part of the thetic wax'in melted condition be stirred in 10 or v more parts of water, upon cooling a beautiful stable emulsion of the wax is had.

Moreover, the novel product is self-emulan emulsion of or with t is wax.

The emulsions thus obtained of oils, fats, hydro-carbons, etc.,-are especially suitable for use in .the preparation of cosmetics or directly for pharmaceutical purposes as they are entirely free from alkali, amines, sulphonated compounds, etc. which are irritant to the skin. If the water emulsion be mixed with 10 or more parts of alcohol, it may be applied to the hair or-us'ed for other cosmetic purposes where a voluminous, gelatinous, aqueous, waxy precipitate is desired. Furthermore, as the emulsifying agent is 85 non-corrosive, non-toxic, edible and substantially colorless and tasteless, these emulsions may be utilized in the preparation of edible products.

For technical purposes, such as water-. proofing, polishing, lubrication, spraying and other uses, the emulsions are also particularly useful. When the wax-like product is dissolved in solvents such as alcohol, benbrush-sprayed, flowed, or otherwise applied to surfaces or crevices, a film of wax is deposited aftcr evaporatlon'of the solvent and serves as a lubricant, waterproofing, corrosion preventative, etc. An excellent polish upon surfaces'such as floors, linoleum, aut0-. mobiles, leather, etc, results from suchrapplication of the compound. Water dispersions of these waxes are especially suitable for use in polishing rubber flooring as they will not injure the rubber or cause the colors to run.

The water dispersions 0 unique in that they do not dry white like as phenolphthalein and with or without flamouth.

voring materials, such as peppermint.

The novel water dispersion or emulsion with an addition of a mild abrasive as precipitated chalk and an antiseptic or medicament such as thymol and, if desired, a, fiavorin ingredient (oil of Wintergreen and the like afiords an excellent tooth paste which is free from the usual-objectionable of these waxes are five, an excess of the fatty acid, a catalyst havin an alkaline base, and water.

4. is an emulsifyin agent,'the wax-like compound consisting o ethylene gl col com- .pletely esterified with stearic aci and an excess of the stearic acid, said compound having an acid reaction and adapted for dispersion in water.

5. As an emulsifying agent, the wax-like compound consis'tin of a diethylene lycol completely esterifie with stearic aciti and an excess of the stearic acid, said compound having an acid reaction and adapted for dispersion in water. 1

6. As an emulsifying agent, the wax-like compoundconsisting of triethylene glycol completely esterified with stearic acid, and an excess of the stearicacid, said compound having an acid reaction and adapted for dis: persion in water.

7'. As an emulsifying agent, the wax-like compound consisting of triethylene glycol completely esterified with stearic acid, an excess of the stearic acid, and sodium glycerophosphate, said compound having an acid reaction and adapted for dispersion in water.

In testimony whereof I aifix my signature.

' HARRY BENNETT.

taste of soap and also from the usual caustic action on thedelicate membranes of the Being an edible roduct and possessing also the property-or thickening water solutions, it may be utilized for this purpose and, together with sugars, starches, gums, etc., in the preparation of various food products such as custards,-pastries, etc. As an emulsion containing a minimum amount of water, it may be used with fats, oils and greases as a shortening agent in baking. In this connection, it has been found that the surface tension of the mix is considerably reduced, resulting in fluflier and lighter baked products. Such surface-tension reducing properties are unique in that they are absent entirely in the usual shortening agents.

I claim: 1. A water emulsion of a s nthetic wax, consisting substantially of a ihydric alcohol completely esterified with a higher fatty acid having a carbon content greater than five, an excess of the fatty acid, and water. 2. As an emulsifying agent, the wax-like compounds consistin substantially of a di hydric alcohol comp etely esterified with a higher fatty acid having. a carbon content greiter than five, and an excess of the fatty ac1 I 3. A water emulsion of a synthetic wax,

consisting substantially of a-dihydric alcocompletely esterified with a higher fatty acid having a carbon content greater than 

